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Phytoextraction of Heavy Metals by Vetivera zizanioides, Cymbopogon citrates and Helianthus annuls
Yashim Zakka Israila,
Agbaji Edith Bola,
Gimba Casimir Emmanuel,
Idris Suleiman Ola
Issue:
Volume 3, Issue 1, February 2015
Pages:
1-5
Received:
15 December 2014
Accepted:
30 December 2014
Published:
20 January 2015
Abstract: The research work under field conditions is to investigate the connection between the heavy metals concentration in soil and their bioaccumulation in Vetivera zizanioides, Cymbopogon citrates (Lemon grass) and Helianthus annuls (sunflower) collected from experimental site and a control area in Zaria-Nigeria. The collection was done by dividing the experimental and control sites each into four quadrants, five plants samples of each species and soil samples were collected from each quadrant in a diagonal basis. The concentrations of Cd, Co, Cu, Ni, Pb and Zn in different parts of each of the plant species collected from the experimental and control soils were determined using atomic absorption spectrophotometry. The experimental levels of the metals were higher (P ≤ 0.05) than those at the control site and the limits recommended by Food and Agricultural Organisation/World Health Organisation (FAO/WHO). The heavy metal concentrations were higher in leaves (P ≤ 0.05) than in roots of the plants tested. Vetivera zizanioides showed the bioaccumulation factor (BF) and translocation factor (TF) values for the studied metals greater than 1 (except Co and Pb that had their BF less than 1). Cymbopogon citratus showed BF values of Cd, Ni and Pb were greater than 1, but TF of all the metals studied were greater than 1. Helianthus annus plant had BF values for Cd, Cu and Zn greater than 1, but TF values for all the metals studied were greater than 1. This indicated that Vetivera zizanioides, Cymbopogon citrates and Helianthus annuls have good phytoextraction potentials for the removal of heavy metals from contaminated soils.
Abstract: The research work under field conditions is to investigate the connection between the heavy metals concentration in soil and their bioaccumulation in Vetivera zizanioides, Cymbopogon citrates (Lemon grass) and Helianthus annuls (sunflower) collected from experimental site and a control area in Zaria-Nigeria. The collection was done by dividing the ...
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Synthesis and Investigation of Polyester and Poly Amide Azo Dyes (I)
Rehab Abdeen,
H. O. BadrEldin
Issue:
Volume 3, Issue 1, February 2015
Pages:
6-13
Received:
17 December 2014
Accepted:
25 December 2014
Published:
20 January 2015
Abstract: The preparation of monomer dyes was carried out by formation of diazinium salt of amine compound to coupled with Ρ- toluidine, aniline to form azo dyes with function (hydroxy and amino) groups. the polymerized was carried out with different diacid chloride or modified with acroyl chloride to polymerize with methylmethacrylate (MMA) by two method solution and interfacial poly condensation methods, the prepared mono azodye, poly(ester) and poly(amide) azopolymers were characterized, by infrared spectroscopy, elemental analysis, 1H NMR, thermodynamic (TGA), thermo gravimetric (DSC) analysis and TGA. The molecular weights were measured by GPC. The synthesized polymers showed a good film forming properties.
Abstract: The preparation of monomer dyes was carried out by formation of diazinium salt of amine compound to coupled with Ρ- toluidine, aniline to form azo dyes with function (hydroxy and amino) groups. the polymerized was carried out with different diacid chloride or modified with acroyl chloride to polymerize with methylmethacrylate (MMA) by two method so...
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Isolation, Structural Elucidation, and Bioactivity Studies of Leaf Extract of Vernonia Amygdalina
Muluye Melak Zenebe,
Bitew Kassaw Dessie,
Getachew G/Mariam W/Hana,
Adhena Ayaliew Werkneh
Issue:
Volume 3, Issue 1, February 2015
Pages:
14-20
Received:
1 January 2015
Accepted:
10 January 2015
Published:
21 January 2015
Abstract: Vernonia Amygdalina (VA) is a tropical African plant of the Asteraceae family and is occasionally cultivated for its medicinal uses, which include as a treatment for diarrhea, skin wounds, fever mastitis and worms infection. The aim of this study is to isolate and elucidate the structure of some of the chemical constituents from the leaf of Vernonia Amygdalina and its bioactivities. The methanol extract of Vernonia Amygdalina, after repeated chromatography led to the isolation of a different compound, one of this compound (MM-4) is partially characterized based on the spectral data (IR, 1H NMR, 13C NMR, and DEPT) and extracts from Vernonia Amygdalina has been shown to have antimicrobial activity.
Abstract: Vernonia Amygdalina (VA) is a tropical African plant of the Asteraceae family and is occasionally cultivated for its medicinal uses, which include as a treatment for diarrhea, skin wounds, fever mastitis and worms infection. The aim of this study is to isolate and elucidate the structure of some of the chemical constituents from the leaf of Vernoni...
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Investigation of Photosensitivity of Copolymer with (P-Vinyl Phenyl) Cyclopropyl Methyl Cinnamate
Kazim Guliyev,
Afat Aliyeva,
Gulnara Ponomaryova,
Abasgulu Guliyev,
Dilbar Nurullayeva
Issue:
Volume 3, Issue 1, February 2015
Pages:
21-24
Received:
25 December 2014
Accepted:
20 January 2015
Published:
2 February 2015
Abstract: The radical copolymerization of (p-vinyl phenyl) cyclopropyl methyl cinnamate with methyl methacrylate has been studied. New cyclopropane-containing photosensitive copolymers have been prepared. The constant values of relative activity of monomers have been determined and the parameters of Q-e on Alfrey and Price have been calculated. The copolymerization constants of this compound (r1) with methyl methacrylate (r2) calculated on Fineman-Ross method are r1 =1.05, r2 = 0.4, respectively; parameter values Q and e: Q1 =2.5, e1 = -0.9, respectively. The composition and structure of these copolymers have been established. The photochemical investigations of the synthesized copolymer have been carried out. It has been established that a structuring proceeds due to opening of cyclopropane ring and carbonyl groups and also double bond in cinnamate fragment.
Abstract: The radical copolymerization of (p-vinyl phenyl) cyclopropyl methyl cinnamate with methyl methacrylate has been studied. New cyclopropane-containing photosensitive copolymers have been prepared. The constant values of relative activity of monomers have been determined and the parameters of Q-e on Alfrey and Price have been calculated. The copolymer...
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